Thomas j



N.FETERs. PHGTOLITHOGRAFHER WASHINGTON D c @Nitrit 'infra @stent ffirrrr y THOMAS J. HARRISON, OR NRW `YORK, N.l Y., AssIeNOR 'rov HIMSRLF `ARD GEORGE ALLIN, OR SAME PLACE.

`Laim Parent Nq.so,o69,tzatied ,my 21, 186s,

fIMPROvRn MACHINE FOR `'RRRDIRG HPR. i

TO ALL WHOM 1r MAYOGONGERN':

Be it known that I, THOMAS J. HARRISON, of4 the city,l county, and State of New Yorlghave inventede. new and useful Machine for Bending Pipe for .stench-traps and like purposes; vand do hereby'declare 'that the followingis a. full,.clear, and exact description thereof, reference being had to the accompanyingA drawings, making partof this specication, of whieh-l Figure 1 represents a side elevation of'themechanism employed for. the purpose of carrying out my invention.l

Figure 2 a. top view of said mechanism.' v V Y i Figure 3 shows the mechanism withrthe [iipe bent in 'the form of the letter s for al stench-trap.

This inventio'urelates to anovel-device for bending pipe, and` especially to'wrought-iron and leaid lpipes when used for stench-traps and like purposes; and consists of a pair of bifurcated hand-levers pivoted on stationary formel-s, and having'rollers pivotedin'their forked ends,both formers and rollers being formed with semicireular recesses, corresponding .to the contour of the pipe which they embrace, (see g.1,)so that as the leversare stung round the stationary farmers, they `earrythe forming-rollers ,Witlitlienn bending the pipe atthe same time tothe desi'redformas shown in fig.

In the said drawings`A denotes a platform, on which are placed two posts B B, which sustain two stationaryl blocks or formers C C. These bloeksarejcylindrieel, and 4have semicirenlar recesses c c, corresponding to the contour of the pipe P, to be bent round them, and are embraced by two bifurcated hand-levers D D, `which are pirated at their-innerer forked ends 'on 4the posts B B, which sustain vthe stationary former-s, (seefgs. 1 and 2.)

These levers DD also embraeelltwo rollers E E, having recesses e e, similar to the-reeessesn the formers C C, said rollers beingv-pivotedeinithe bifureated endsfpf the levers, and carriednound the stationary farmers, with the levers'as they swing` round said formera, and the-farmers C C may rotate on the-posts B B ifpreferred.

It is well vknown to persons engaged in the manufacture of pipe, that to make a piece of'pipe of the form s, for a stench-trap, a pattern -'is `laid on a sheetof lead, and the piece, when cut from the pattern, hammered or swaged in Vconcave form,fan'd a similar piece 'being so prepared, both Aare placed together and soldered, theproeesssconsumingmuh time and expense, besides requiring a skilful mechanic to make goodjoints..

'The operation of my invention is very simple, and is as follows zi,

I take a piece of pipe, P, of the desired diameter andlength, and I place the same between the stationary 4lnrrners B Bland the rollers; E E,(see iig. 2,) andjI nexttake the harid-levers D'D, and alternately Yory simpl#` taneously force them in the rdirection oi the arrows, when the pipe P will'be'bent to the'form shownin Ag; 3i

. Instead of the ha'ndjlevers'herein shown, other -means may be employed, to rota-te the rollers E around the sta'tionaryformers C C, and the principle remain the same.' u l l Having described my invention, I would disclaimas new any-of the specific parts'herein mentioned; but `What I fie-claim, and desire to'secure by Letters Patent; isil y The arrangement herein described f 'theformers C rollers E E, and hifurcated levers D D on theplatformv A, in the manner substantially as and for the purposes described'and set forth.,

In testimonyl whereof, I`have hereuntoset my signature, this 12th day of May, D.18|38,l

' r THOMAsJ. RARRIsON.A

`Witnesses:

A. ONmLL. l JAS. CHAPMAN. 

